In one aspect, a wireless device receives a scheduling grant and a grant confirmation signal indicating that a network node has performed a CCA on a carrier and is releasing the carrier for the wireless device. An uplink message is transmitted on the carrier without performing a CCA on the carrier. In another aspect, a wireless device is connected to a first cell and a second cell configured on a carrier requiring an LBT protocol. The wireless device receives configuration messages indicating that downlink transmissions on the second cell are to be scheduled. This can mean self-scheduling for downlink on the second cell and cross-carrier scheduling for uplink on the first cell. The wireless device receives a scheduling grant in the first cell and performs a CCA in the second cell. The wireless device then transmits an uplink message responsive to success of the CCA.
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2. The method of claim 1, wherein the confirmation signal is received after the scheduling signal.
A system and method for managing communication signals in a wireless network involves transmitting a scheduling signal to a user device to allocate resources for data transmission. The scheduling signal includes timing information to coordinate the transmission and reception of data between the network and the user device. After the scheduling signal is sent, a confirmation signal is received from the user device, indicating that the device has successfully received and processed the scheduling information. This confirmation signal is used to verify that the allocated resources are properly acknowledged and to ensure synchronization between the network and the user device. The method may also include adjusting transmission parameters based on the confirmation signal to optimize communication efficiency and reliability. The system may further include a network controller that generates the scheduling signal and processes the confirmation signal, along with a user device that receives the scheduling signal and transmits the confirmation signal. The method ensures proper resource allocation and synchronization in wireless communication networks, improving data transmission efficiency and reducing errors.
3. The method of claim 1, wherein the scheduling signal is a scheduling grant, and wherein the confirmation signal is a grant confirmation signal.
This invention relates to wireless communication systems, specifically to methods for managing scheduling signals between a base station and a user device. The problem addressed is the need for efficient and reliable communication of scheduling grants and their confirmations to ensure proper resource allocation and data transmission in wireless networks. The method involves a base station transmitting a scheduling grant to a user device, indicating allocated resources for data transmission. The user device then sends a grant confirmation signal back to the base station to acknowledge receipt of the scheduling grant. This confirmation ensures that both the base station and the user device are synchronized regarding the allocated resources, reducing the risk of miscommunication or resource conflicts. The scheduling grant may include details such as time slots, frequency bands, or modulation schemes for the upcoming data transmission. The grant confirmation signal serves as an acknowledgment, allowing the base station to proceed with the transmission or adjust scheduling if no confirmation is received. This two-way signaling process improves reliability in dynamic wireless environments where signal interference or delays can occur. The method is particularly useful in systems where timely and accurate resource allocation is critical, such as in high-speed data networks or real-time communication applications. By ensuring that both the base station and user device are aligned on scheduling decisions, the method enhances overall network efficiency and reduces the likelihood of transmission errors or wasted resources.
4. The method of claim 3, wherein the confirmation signal is received after the scheduling signal.
6. The method of claim 5, wherein the confirmation signal is transmitted after the scheduling signal.
A system and method for wireless communication involves transmitting a scheduling signal to allocate resources for data transmission and subsequently sending a confirmation signal to verify the allocation. The scheduling signal includes information about the allocated resources, such as time slots, frequency bands, or code sequences, to ensure efficient and conflict-free communication. The confirmation signal is transmitted after the scheduling signal to confirm the resource allocation, allowing the receiving device to prepare for data transmission or reception accordingly. This method improves communication reliability by reducing the risk of resource conflicts and ensuring that both transmitting and receiving devices are synchronized. The system may be used in various wireless communication standards, including cellular networks, Wi-Fi, or other radio access technologies, where efficient resource management is critical. The confirmation signal may include additional information, such as timing adjustments or error correction data, to further enhance communication performance. By separating the scheduling and confirmation steps, the system ensures that resource allocation is properly acknowledged before data transmission begins, reducing the likelihood of errors and improving overall network efficiency.
7. The method of claim 5, wherein the scheduling signal is a scheduling grant, and wherein the confirmation signal is a grant confirmation signal.
This invention relates to wireless communication systems, specifically to methods for managing scheduling signals between a base station and a user device. The problem addressed is the need for efficient and reliable communication of scheduling grants and their confirmations in wireless networks to ensure proper resource allocation and data transmission. The method involves a base station transmitting a scheduling grant to a user device, indicating allocated resources for data transmission. The user device then sends a grant confirmation signal back to the base station to acknowledge receipt of the scheduling grant. This confirmation ensures that both the base station and the user device are synchronized regarding the allocated resources, preventing miscommunication and improving network efficiency. The scheduling grant may include details such as time slots, frequency bands, or modulation schemes for the data transmission. The grant confirmation signal serves as an acknowledgment that the user device has received and understood the scheduling grant, allowing the base station to proceed with the data transmission process. This two-way communication helps reduce errors and optimize resource utilization in the wireless network. The method is particularly useful in scenarios where reliable and timely communication between the base station and user devices is critical, such as in high-traffic or latency-sensitive applications. By ensuring that scheduling grants are properly acknowledged, the system can avoid conflicts and improve overall network performance.
8. The method of claim 7, wherein the confirmation signal is transmitted after the scheduling signal.
A system and method for wireless communication involves coordinating transmissions between devices to avoid interference. The technology addresses the problem of signal collisions in shared communication channels, particularly in environments where multiple devices compete for access. The method includes generating a scheduling signal to allocate transmission opportunities among devices, ensuring that only one device transmits at a given time. A confirmation signal is then transmitted after the scheduling signal to verify that the allocation was successfully received and acknowledged by the devices. This confirmation step helps prevent miscommunication and ensures proper coordination. The scheduling signal may include timing information, priority levels, or other parameters to optimize channel usage. The confirmation signal may be sent by the coordinating device or another entity responsible for managing the communication channel. The method is applicable in various wireless networks, including Wi-Fi, cellular, or IoT systems, where efficient and collision-free communication is critical. By implementing this approach, the system reduces the likelihood of signal collisions, improves data throughput, and enhances overall network reliability.
9. The method of claim 7, wherein transmitting the scheduling signal is preceded by performing a CCA.
A system and method for wireless communication involves coordinating transmissions between devices to avoid interference. The problem addressed is the need for efficient and reliable scheduling of data transmissions in shared wireless environments, such as Wi-Fi networks, where multiple devices compete for access to the communication medium. The solution includes a scheduling process where a transmitting device sends a scheduling signal to one or more receiving devices to reserve a time slot for data transmission. Before transmitting the scheduling signal, the system performs a clear channel assessment (CCA) to determine if the communication channel is available. The CCA checks for ongoing transmissions or interference to ensure that the channel is clear before proceeding with the scheduling process. This step helps prevent collisions and improves the reliability of the scheduling mechanism. The scheduling signal may include information such as the duration of the reserved time slot, allowing the receiving devices to prepare for the upcoming transmission. The method ensures that data transmissions are coordinated and minimizes the risk of interference from other devices operating in the same frequency band. This approach is particularly useful in dense wireless networks where multiple devices frequently contend for access to the shared medium.
10. The method of claim 5, wherein transmitting the scheduling signal is preceded by performing a CCA.
A method for wireless communication involves scheduling transmissions in a shared spectrum environment to avoid interference. The method includes performing a clear channel assessment (CCA) to determine if the communication channel is available before transmitting a scheduling signal. The scheduling signal coordinates data transmission between multiple devices, ensuring efficient use of the shared spectrum while minimizing collisions. The CCA step involves detecting energy levels or other indicators of channel occupancy to decide whether to proceed with transmission. This approach is particularly useful in dense wireless networks where multiple devices compete for limited spectrum resources, reducing the likelihood of interference and improving overall network performance. The method may be implemented in various wireless communication systems, including Wi-Fi, LTE, or 5G networks, where dynamic spectrum access is required. By incorporating CCA before scheduling, the system ensures that transmissions only occur when the channel is clear, enhancing reliability and throughput. The method may also include additional steps such as adjusting transmission parameters based on CCA results to further optimize performance.
12. The wireless device of claim 11, wherein the circuitry is configured to cause the wireless device to receive the confirmation signal after the scheduling signal.
A wireless device is configured to operate in a wireless communication system where efficient scheduling and confirmation of data transmissions are critical. The device includes circuitry that enables it to receive a scheduling signal from a network node, such as a base station, which allocates resources for uplink or downlink transmissions. The circuitry is further configured to process this scheduling signal to determine the allocated resources, such as time slots, frequency bands, or modulation schemes, required for the transmission. After receiving the scheduling signal, the device transmits data over the allocated resources. The network node then sends a confirmation signal to the wireless device to acknowledge successful reception of the transmitted data or to indicate any errors. The circuitry in the wireless device is designed to receive this confirmation signal after the scheduling signal has been processed and the data transmission has occurred. This ensures proper synchronization between the scheduling, transmission, and confirmation processes, improving reliability and efficiency in wireless communications. The device may also include additional circuitry for error detection, retransmission handling, or resource reallocation based on the confirmation signal.
13. The wireless device of claim 11, wherein the scheduling signal is a scheduling grant, and wherein the confirmation signal is a grant confirmation signal.
A wireless device is configured to communicate with a base station in a wireless communication system, where the device includes a transceiver and a processor. The transceiver receives a scheduling signal from the base station, which allocates resources for uplink or downlink communication. The processor generates a confirmation signal to acknowledge receipt of the scheduling signal and transmits this confirmation signal back to the base station. The scheduling signal is a scheduling grant, which specifies the resources allocated for data transmission, and the confirmation signal is a grant confirmation signal, which confirms the device's acceptance of the allocated resources. This mechanism ensures reliable communication by verifying that the device has correctly received and acknowledged the scheduling grant, reducing the risk of miscommunication or resource conflicts in the network. The device may also include additional components, such as a memory for storing configuration data or a display for user interaction, to support its communication functions. This system improves efficiency and reliability in wireless networks by ensuring proper synchronization between the base station and the wireless device.
14. The wireless device of claim 13, wherein the circuitry is configured to cause the wireless device to receive the confirmation signal after the scheduling signal.
A wireless device is configured to manage communication in a wireless network, particularly in scenarios where efficient resource allocation and confirmation of transmissions are critical. The device includes circuitry that enables it to transmit a scheduling signal to another device, such as a base station or another wireless node, to request or allocate communication resources. The circuitry is further configured to receive a confirmation signal from the other device after the scheduling signal has been transmitted. This confirmation signal acknowledges the scheduling request or allocation, ensuring that the wireless device can proceed with the intended communication without conflicts or delays. The circuitry may also handle additional functions, such as adjusting transmission parameters based on the confirmation signal or managing retransmissions if the confirmation is not received. This system improves reliability and efficiency in wireless communication by ensuring that resource allocation is properly acknowledged before data transmission occurs. The invention is particularly useful in environments where timely and conflict-free communication is essential, such as in cellular networks, IoT deployments, or other wireless systems requiring coordinated scheduling.
16. The network node of claim 15, wherein the circuitry is configured to cause the network node to transmit the confirmation signal after the scheduling signal.
A network node in a wireless communication system is configured to manage communication resources by transmitting scheduling signals to allocate resources for data transmission. The node includes circuitry that generates and transmits a confirmation signal after the scheduling signal to confirm the allocation. This confirmation signal ensures that the receiving device acknowledges the resource allocation, reducing the risk of miscommunication or resource conflicts. The circuitry may also handle additional functions such as monitoring signal quality, adjusting transmission parameters, and coordinating with other network nodes to optimize resource usage. The confirmation signal may include timing information, frequency allocation details, or other parameters to ensure proper synchronization between the network node and the receiving device. This system improves reliability in dynamic wireless environments by providing explicit confirmation of resource assignments, minimizing errors in data transmission scheduling. The network node may operate in various wireless standards, including 5G, LTE, or other advanced communication protocols, where efficient resource management is critical for maintaining high throughput and low latency. The confirmation mechanism helps prevent collisions and ensures that allocated resources are correctly utilized, enhancing overall network performance.
17. The network node of claim 15, wherein the scheduling signal is a scheduling grant, and wherein the confirmation signal is a grant confirmation signal.
This invention relates to wireless communication systems, specifically to a network node that schedules and confirms resource allocation for user equipment (UE) in a cellular network. The problem addressed is the need for efficient and reliable communication between a network node and UE to manage radio resources, particularly in scenarios where scheduling decisions must be confirmed to ensure proper resource utilization and avoid conflicts. The network node includes a transmitter configured to send a scheduling signal to the UE, which is a scheduling grant that allocates specific radio resources (e.g., time slots, frequency bands, or code channels) for uplink or downlink communication. The scheduling grant specifies the resources assigned to the UE, allowing it to transmit or receive data accordingly. The network node also includes a receiver configured to receive a confirmation signal from the UE, which is a grant confirmation signal indicating that the UE has successfully received and acknowledged the scheduling grant. This confirmation ensures that the network node is aware of the UE's readiness to use the allocated resources, reducing the risk of miscommunication or resource conflicts. The network node may further include a processor to generate the scheduling grant based on network conditions, UE capabilities, or quality of service requirements. The confirmation signal may be sent via a control channel or a dedicated signaling channel, ensuring reliable delivery. This system improves resource management efficiency, reduces signaling overhead, and enhances overall network performance by ensuring that scheduling decisions are properly acknowledged and executed.
18. The network node of claim 17, wherein the circuitry is configured to cause the network node to transmit the confirmation signal after the scheduling signal.
A network node in a wireless communication system is configured to manage communication resources by transmitting scheduling signals to allocate resources to user devices. The node includes circuitry that generates and transmits a confirmation signal to verify the successful allocation of resources. This confirmation signal is sent after the scheduling signal to ensure that the user device acknowledges the resource allocation. The circuitry may also handle additional functions such as monitoring resource usage, adjusting allocations based on network conditions, and coordinating with other network nodes to optimize resource distribution. The confirmation signal helps prevent conflicts and ensures reliable communication by confirming that the scheduled resources are correctly assigned and available for use. This system is particularly useful in high-density networks where efficient resource management is critical to maintaining performance and minimizing interference. The network node may operate in various wireless standards, including 5G and beyond, where dynamic resource allocation is essential for supporting diverse services and user demands. The confirmation mechanism enhances reliability by providing feedback on the scheduling process, reducing the likelihood of misallocations or collisions.
19. The network node of claim 17, wherein the circuitry is configured to cause the network node to perform a CCA before transmitting the scheduling signal.
A network node in a wireless communication system performs clear channel assessment (CCA) before transmitting a scheduling signal to allocate resources to a user device. The node includes circuitry that detects channel conditions to determine if the channel is clear for transmission. If the channel is clear, the node transmits the scheduling signal, which includes resource allocation information for uplink or downlink communication. The scheduling signal may be transmitted in a shared or dedicated channel, depending on network configuration. The node may also adjust transmission parameters, such as power or modulation scheme, based on the CCA results to optimize communication efficiency. This ensures reliable scheduling while minimizing interference in the network. The CCA process helps avoid collisions and improves spectral efficiency by dynamically assessing channel availability before transmitting control signals. The node may operate in licensed or unlicensed spectrum, adapting its behavior based on regulatory or operational constraints. The circuitry may also support multiple access technologies, allowing flexible deployment in heterogeneous networks. The overall system enhances reliability and throughput by dynamically managing resource allocation based on real-time channel conditions.
20. The network node of claim 15, wherein the circuitry is configured to cause the network node to perform a CCA before transmitting the scheduling signal.
This invention relates to wireless communication systems, specifically to a network node that improves communication efficiency by performing a clear channel assessment (CCA) before transmitting a scheduling signal. The network node includes circuitry that enables it to evaluate the availability of the communication channel before sending scheduling information to other devices. This ensures that the scheduling signal is transmitted only when the channel is clear, reducing interference and improving reliability in shared wireless environments. The network node may operate in various wireless standards, such as Wi-Fi or cellular networks, where channel contention is a common issue. By incorporating CCA functionality, the network node avoids collisions with other transmissions, optimizing network performance and resource utilization. The circuitry may also support additional features, such as adaptive transmission power control or dynamic frequency selection, to further enhance communication efficiency. This approach is particularly useful in dense wireless networks where multiple devices compete for limited spectrum resources. The invention addresses the problem of inefficient channel usage and signal collisions, providing a solution that improves overall network throughput and reliability.
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January 23, 2020
December 6, 2022
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